72873100 has 18 divisors (see below), whose sum is σ = 158134844. Its totient is φ = 29149200.

The previous prime is 72873079. The next prime is 72873127. The reversal of 72873100 is 137827.

It is a happy number.

It is a super-2 number, since 2×72873100² = 10620977407220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364266 + ... + 364465.

Almost surely, 2^72873100 is an apocalyptic number.

It is an amenable number.

72873100 is an abundant number, since it is smaller than the sum of its proper divisors (85261744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72873100 is a wasteful number, since it uses less digits than its factorization.

72873100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728745 (or 728738 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 72873100 is about 8536.5742543482. The cubic root of 72873100 is about 417.6916065065.

The spelling of 72873100 in words is "seventy-two million, eight hundred seventy-three thousand, one hundred".